Thrust-bearing.



FRITZ- SOHULZ, or cIIIoAco, ILLINOIS.

' THRUST-BEA-RIYNG.

- nae iav'r'e Specification of Letters Patent.

Eatented April 2, 1907.

Application filed November 13,1805. Seviel No. 287,144.

To all whom it may concern:

Be it known that I, FRITZ SonULz, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful I-mrovernent's in Thrust-Bearings; and I do hereby declare the following to be a full, clear, and exact description of the inventIon, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to a novel construction in a thrust-bearing for lathe-spindles or the like, the object being to provide simple and efficient means for reducing the friction and providing at the same time a bearing -having lasting wearing power, and consists in the features of construction and combinations of parts hereinafter fully described and claimed. I In the accompanying drawings, Illustrating any invention, Flgure .1 is a central longitudinal section, partly in elevation, of a spindle rovided with a thrust-bearing constructed In accordance with my invention. Fig. 2 is a transverse section of the same on the line 2 2 of Fig. 1. Fig. 3 is a fragmentary longitudinal sectionon the line 3 3 of Fig. 2. Fig. 4

I is a central longitudinal section, partly in elevation, of an adjustable thrust-bearing for use in metal-s inners lathes.

dles employed in meta Lathe-spin les, and particularly the spin- -spinners lathes, are subjected to relatively heavy end or thrust pressure while rotating at high speed, andthe thrust-bearings for the same are therefore very apt to become hot and, in fact, un.

less continuously and well lubricated and pressure distributed over relatively large area attain very high temperature and rapidly wear out,-so t Iat constant repairs become HBCGSSSJY.

The object ofmy present invention is to provide a thrust-bearing in which the friction is minimized and which is chea rela tively durable, and easily and quic ly repaired at very small cost. To this and other ends I provide in the sleeve or journal'A, 1n

' which the spindle B is journaled, a plate C,

said sleeve A and resting upon said plate C. The said-rollers D are revolved by the frictional contact of the spindle B therewith and are held outwardly, so that the conical ends of the same bear against the walls of said opening F by means of the centrifugal force imparted. As shown in Fig. 4, the said late C may be disposed in the. path of the on of a set-screw H, by means of which it is adjusted in position to adjust the position of the shaft or spindle B, this being particularly neces-',

sary and desirable in a metal-spinners lathe.

In order to hold the spindle B in place, as shown in Fig. 1, and to further decrease the friction thereof, I surround the same with cylindrical rollers I, the latter being substantially equal in diameter to the width of the annular space between said spindle B and the surrounding sleeve A. The said spindle is provided at its rear end with an annular flange J between which and a plate K, disposed adjacent the forward end of the sleeve A, said rollers are confined. Said sleeve A is provided internally adjacent its forward end with an annular groove L, in which a split spring-ring Mis adapted to be sprung and forms a collar serving to hold said plate K in proper relative position;

It will be noted that the plate G is revolved by said rollers D, and it is therefore necessary and advisable to maintain the chamber in which said plate G rests well lubricated, this being accomplished in any suitable manner.

Attention is-called to the fact that repairs can be readily effected by removing the s indle B or in the construction shown in Fig. 4 removing the cup IT, which takes the place of said sleeve A, and removing the rollers D, contained therein, and replacing the same, said rollers being mainly subjected to wear. A new plate. G may obviously be inserted in the same manner. Said spindle B in-the construction shown in Fig. 1 is removed by first removing the split rin M and then withdrawing the spindle, thereby obviousl 'also withdrawing said plate K and rollers I claim'as my invention 1. In a thrust-bearing, the combination with a sleeve having an end wall, and the spindle revoluble in said sleeve, of a plate disposed between the end wall of said sleeve and the end of said spindle and having a central rectangular opening, rollers of greater diameter than the thickness of said plate disposed within said opening and confined between the side walls of the latter by periph- Ill oral eontaet therewith the axes of said rollers there bein an annular llan e'at the inner end D loe1n radlall dls )osed relativel to the axis 1 ol' sald s )lndle a )late dis )osed ad aeent the of said spindle and the outer ends thereof being conical and abutting against the end walls of said opening, said rollers being disposed on opposite sides of the axis of rotation of said spindle and adapted to be revolved by contact With the inner end of the latter to revolve said plate.

2. An antifriction-bearing for a spindle comprising a cup of larger diameter than said spindle, a revoluble plate having an opening disposmhbetween the end wall of said cup and the end of the spindle, rollers of larger diameter than the thickness of said plate loosely disposed 111 said opening and adapted to receive the thrust pressure on said splndle,

i mouth of said cup and having a central opening for the passage of said spindle, antiiriction-rollers disposed around said spindle between said annular flange and said plate, and a splt spring-ring disposed in an annular groove in the mouth portion of said cup adapted to hold said last-named plate against removal.

In testimony whereof I have signed my name in presence of tWo subscribing witnesses. I

FRITZ SCHULZ. Witnesses:

RUDOLPH WM. LoTz, E. F. WILSON. 

